제출 #920776

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
920776		Faisal_Saqib	Toys (CEOI18_toy)	C++17	100 / 100	3387 ms	90376 KiB

toy

#pragma GCC target ("avx2")
#pragma GCC optimize ("O3")
#pragma GCC optimize ("unroll-loops")
 
#include <iostream>
#include <map>
#include <set>
using namespace std;
map<int,set<int>> mp;
void pos(int&x)
{
	auto it=mp.find(x);
	if(it!=mp.end())
		return;
	set<int> cur={x-1};
	for(long long d=2;(d*d)<=x;d++)
	{
		if(x%d==0)
		{
			x/=d;
			pos(x);
			auto nxt=mp[x];
			for(auto&j:nxt)
				cur.insert(j+(d-1));
			x*=d;
			if((d*d)!=x)
			{
				d=x/d;
				x/=d;
				pos(x);
				auto nxt=mp[x];
				for(auto&j:nxt)
					cur.insert(j+(d-1));
				x*=d;			
				d=x/d;
			}
		}
	}
	mp[x]=cur;
}
int main()
{
	cin.tie(0);
	cout.tie(0);
	ios::sync_with_stdio(0);
	int n;
	cin>>n;
	scanf("%d",&n);
	pos(n);
	auto tlp=mp[n];
	printf("%d\n",tlp.size());
	for(auto&i:tlp)
		printf("%d ",i);
	printf("\n");
}

컴파일 시 표준 에러 (stderr) 메시지

toy.cpp: In function 'int main()':
toy.cpp:51:11: warning: format '%d' expects argument of type 'int', but argument 2 has type 'std::set<int>::size_type' {aka 'long unsigned int'} [-Wformat=]
   51 |  printf("%d\n",tlp.size());
      |          ~^    ~~~~~~~~~~
      |           |            |
      |           int          std::set<int>::size_type {aka long unsigned int}
      |          %ld
toy.cpp:48:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   48 |  scanf("%d",&n);
      |  ~~~~~^~~~~~~~~

• Subtask 1: 19 / 19
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 20 / 20
• Subtask 5: 21 / 21